Home / 153,450,021.71-211,761,114.93-82,885,631.59

Finding the Fourth Proportional to 153,450,021.71, 211,761,114.93 and 82,885,631.59

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Solution

The fourth proportional to 153,450,021.71, 211,761,114.93 and 82,885,631.59 is: 114,382,217.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,450,021.71 : 211,761,114.93 = 82,885,631.59 : x
  2. Step 2: Convert to fraction form
    153,450,021.71/211,761,114.93 = 82,885,631.59/x
  3. Step 3: Cross multiply
    153,450,021.71x = 211,761,114.93 × 82,885,631.59
  4. Step 4: Simplify right side
    153,450,021.71x = 17,551,953,757,129,510
  5. Step 5: Solve for x
    x = 17,551,953,757,129,510/153,450,021.71
  6. Step 6: Final answer
    x = 114,382,217.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.